Binding-terminal.



R'. B. BENJAMIN. BEST AVAILABLE COPY BINDING TERMINAL.

1,282,525. ummm; TERMINAL. Patented Out. 22, lJIh.

' fnv cmon r|L:Drla.2s.\91e. 2 SWIS-SHED 1 1,282,525. /W' y, mmm om..22, um.

2 SHLLIS 5ML! 1 BEST AVAILABLE COPY n. B. ummm. lNDlNG TERHINAL APLICAIN1916.

.. mmm mmm. Patented 00th 22, 1918.

2 SHEiTS-SHEET 2.

Patented 001'. 22, 12118.

2 SHEETS-SHEU 2.

tiren einen BEST AVAILABLE COPY p v 'isgiiiiniiif @F11-@11ml Reimann B.'BENJai/in, oi onions@ iLLiiiois, ,assisteren 'ro BENJAMIN ELECTRIC.nannrncrnnine COMPANY, or onioneo, iiiLinois, n CORPORATION orILLINOIS.

I. To 'all whom it lmay concern:

Be it linoivn 'that I, Rennen BENJA- eine, a eitizenlof 'the UnitedStatesllrir'esiding fat Chicago, in the'countyv 'of Cook 'anelvg'tate ciillinois, have invented newland use llinpi'oveinents inBinding-Terminals, of which the following" is a full, clear, concise,and-'ex'- A- act description, reference being had tothe accompanyingdrawing, forming a part of this speci'cation. A. j Iy'iiiifentionrelates tohinding terminals.

' irniongl the objects orn iny invention is to provide a bindingterminal by ineans of,

a section on theiline -5 of section on the lineS-G of i-- "i i thebinding tero center c Fia'. 8 s a side ele oi; the binding terminalshown in i. ig, i

Fig. 9 is plan rien* ot the center contact;

3.5 Fig. 1G i? a side eievation the center contact;

Fig. 11 is a s` de elevation ci another forni of receptacle;

l2 is a section on the line 12-12 of 11:

Fig. .13 is a sectionon the line 13 1-5 oi' Fig. 1;. A n

Fig. is a section on the line ifi-1li of Fig. 12 looking up; e5 Fig. 15is a vier.' of the open end of the receptacle;

Fig. 16 isaside elevation of a switch provided Withv injyY improvedbinding terminal; l Fig. 17 is a section on the line 17-17 of Fig. 16;

18 is a sec-tional View showing one, form of binding terminal;

Fig. 19 is a plan View of the binding plate oi Fig. 18; a .d

i Specicaticn of Letters Patent.

'appiieatibn iiie'rir'ebruary 9e, isis, serial no. 81,101.

.Figi f1- is a View of the closed end of thev Patented @cti Figs.20,'21, and `are sectional other forms ofbindingterminals. A

Jreferring non7 to the drawings indetiiil and first tofFigs. 1 to 10,inclusive, the iinpioi'ed binding terminal is here ,shownin connection:with a receptacle 'comprising an Le', isis.

yViews et Vinsnlaiiingr base 10, shell and center contacts v 1-1 and12,"snpported by the base, and Hind- .ingterniinals 13 and 14 for theshelland center contacts, respectively. l Thegbase :10 haslpopening's 15and 16 on opposite-sidesor theentrance of the-ends ofthe Wires.v Theshel contact comprises threadedjportion -17 and a iange portion 18Whicliyis held on thev base lO'by n'ieans oi'.nuts 19and screws 20. Thecenter Contact coinprises a spring contact' portion 21 and abaseportionf-QQ ywhich is secured to the insulating basciliy means` ofan eyel'et 23. The binding terminal 13 comprises a binding plate 24e anda binding screw 25 which is threaded into a" plate 26 secured on theinsulatingv base liyf'nie'ans of an eyelet 27. yThe binding plateQiconiprises aiport-ion 28 having a slot 29 therein through which J[hescrew .215 extends, an i'n clined portion 30 for engagement with theconical Linder surface of the head 'of the screw 25 and a'portion 31 forretaining the end of the wire in place and holding itf against thebinding screw Vand a portion through 'which the eyelet :27 extendscin-'e the binding plate in place. Tliesere f 25 has a fiat head 33having a conical under surface 3i for engagement with the inclinedportion The flange portion 18er" the shell Contact is slotted at 35 toaccoininodme the screiiY and to allow inovenient of' this screw. Thebinding tciininal comprises a binding plate Bdaiid a binding screw; 37which is threaded into a piate 3S vofvcoiiducting material secured tothe insulating base by means of an eyelet Q3. The binding plate 36 issubstantially the saine was' Jthe Y binding plate Qi except thatit hasan eXteni sion 39 through which the eyeletQS extends to hold the bindingplate in place.

1n Wiring the device the ends of the wires i0 are inserted through theopenings v15 'and 16 beneath the heads of the screws 25 and`l37 I andthese screws are then tightened downl on the ends. of the wires. As eachscrew is tightened down the conical undersiirface 34 of its head engagesthe inclined` portion 30 ionizing a support for the screw against theStrain on tiie screw head due to the reaction ing terminals being thesame as in the of the end of the wire against the head and the inclinedportion 30 also acts as a wedge to force the screw orr'againstthe endofthe wire to clamp the wire between the liead of the screw and theportions and 31, the slot 29 in the portion 28 permitting this action ofthe screw. The engagement of the conical surface 3l of the screw headwith the end of the wire will also force the latter down into the slot29 asindicated in Fig. 18, forming a kink in the wire which materiallyaids in securely holding it In Figs. 11 to 15, inciusive. the bindingterminal is shown in connection with a different form of receptacle inwhich the ends of the wires are inserted through openings in the endsvof the receptacle instead rot' through openings in the sides.- Thereceptacle shown in these figures comprises an insulating base l1, ashell contact l2 supported b the base, a combined' binding terminal andretaining member 43 for the shell contact and a combined center contactand bind ing terminal All.. The insulating base ha: openings l5 and '16in its end-for the ends of the wiresI and openings 47 and 48 ou oppositesides affording access to the binding screws. The shell contact l2 has athreaded portion 49 and a flange portion 50 for securing it to theinsulating base. The combined center contact and binding terminal member4l comprises a spring contact portion 51. a base portion secured to theinsulating base by means of an eyelet 58 anda binding terminal portioncomprising a portion' 54 having a slot through which the binding screwextends, an inclined portion 56 t'or engagement. with ythe conical undersurl'wice of the head of the binding screw, and a portion 57 forretaining the end of the wire and holding it against the binding screw58.

The combined binding terminal and retaining member 43 comprises a lYokeportior 59 which engages the flange portion 50 and is held in place onthe insulating base by means of screws 60, and a binding termina7portion 61 which is substantially like the binding terminal portion -14just described In this forni' the ends of the wires are in sertedthrough the openin s 45 and 46 and a screw driver is inserted tiroughthe open- `ings 47 and 48 to tightenthescrews down on the ends of thewires, the action cf the bindform shown in Figs. 1 to 10.

' In Figs. 15 and 16 the binding terminal is shown in connection with aswitc`h62 comprising a sheet metal casing G3, an insulating base 64within the easing 63, a switch button 65 for operating the switch and acombined binding terminal and conducting 'member 66 supportedon theinsulating base. The base-'64. is recessed at 67 to accommodate Athemeinber`66. The member 66 comprises a baseA portion 68. secu-red to thelinsulating base bynieans of Screws 69 and a binding terminal portion 70Awhich is substantially the same' as the binding terminal portion 61 justdescribed. In wiring this device the easing G3 is slipped off ofthevinsulating `base` and the wire is inserted beneath tl'ie head of thescrew which is then tightened down, the

action of the binding terminal vbeing' thev Ti. Eig. 21 a `flat headscrew is used ITIL the lso binding plate 76, differs' from the' bindingi plate 71 in that one lip-standing portion 7"." .loes not engage theconical under surface of the head of the screw but ngagesz-the edge ifthe head. In both of the forms shown in Tigs. QOand 21, however, it willAbe noted that the head'othe screw is supported against the i'eaction ofthe wire against it by A means of a portion struck up from the bindingplate and engaging the head of ,the lscrew.

In Fig. 22 the binding plate .is the saine .as in the form shown in Fig.2 1 but a button head screw is substituted for the iiat head screw. Inall of the forms shown in Figs. 1e to 22 it will be noted that the endof the lwire is forced down into the slot in the binding plate by thehead of the vbinding screw forming a kink in the wire which assistsinaerially in securely holding it.

Having thus described my invention what I claim as new and desire to,secure by Let- Vers Patent is;-

1. A binding terminal comprising a binding plate and ai binding screw,said binding plate having a portion having an opening through which saidscrew extends, said screw having a head having a conical under sui'-face, and said binding plate having an inciinelportion for engaging saidconical surface'for supporting the screw head, said head and platehaving cooperating portions for' clamping a 'conductor therebetween.

2. A binding terminal comprising a binding plate and a bindingserew,.said 'binding' plate having a poitiomhaving an o ening throughwhich said screw extends-sai screw having a. head having a conical undersurface, and said binding plate having an inclined portion for engagingsaid conical surface for supporting the screw headsaid opening -bein-g'elongated in a directing. lo; permit said screw to be wedged overaggnslthe wire by said engagement.'

ieaeee l cliiied portion foi' engaging said conical snrface forsupporting the screw head, and having an rip-turned portion on theopposite side ot' said screw ioni Said inclined portion for holding theWire in engagement with said screw. l

4. A binding terminal comprising binding plate and a binding screw, saidbinding plate having a portion having an opening through which saidscrew extends, said screw having a head having a conical under snrface,said opening being'elongated'to permit the, Wire to be bentithereinto bySaid screw head, said head and plate having coperating portions forclamping a conductor therebetween. 1

5. A binding terminal comprising a binding plate and a binding screw,said'binding plate having a portion having an opening through which saidscrew' extends, said screw having a head, said opening being elongatedto perinit therwiie to be bent thei'eiiito by said Screw head, said;head andplate having coperating portions .'torclainping a conduc- .tor,therebetween 6.' A binding terminal comprising a binding plate and abinding screw, said binding platehaving a portion having an opening BESTAVALABLE COPY through which said screw extends, said sci'ew having ahead, said opening being elongated to permit. the. wire to be bentthei'einto by said screw head, said binding plate haring an iipturnedportion engaging said screw head on the Side opposite the Wire forsupporting said head. \x

7. A binding tei'ini'iial comprising a binding plate inenibei, Screwhating a head having a conical 'nndei'surface between which and saidbinding plate, ineniber the concluetoi may be clamped, whereby' saidconductor will react laterally againt\said head, said plate in einbeihaving an inclined portion for engaging said conical enrtace on the eideopposite that upon whieh Said head engagea.

the conductor 'for nppoiting said seiten' head against the reaction ofsaid conductor.

8. A binding terminal comprising a binding plate inenibei, screw havinga head having a. conical under sniace between which and said bindingplate nienibei' the conductor may be claniped, whereby said conductorTwill react laterally against said head and a nieinber having aninclined portion for engaging said conical surface on the opposite sideof/Whi'ch saidliead engages the conductor for siigporting said screwhead against the reaction ot said conductor', and for forcing it overagainst said-conductor.

In'Witness whereof, l havelliereunto subscribed my naine.

REUBEN B. BENJAh/HN.

